Panellists: Gordon Brown, William Hague, Charles Kennedy, Lesley Knox.

Panellists: William Hague, Peter Hain, Piers Morgan, Shirley Williams.

Panellists: Robin Cook, William Hague, Jean Lambert, Shirley Williams.

Panellists: Tim Collins, William Hague, Patricia Hewitt, Charles Kennedy, Oona King.

Panellists: Paddy Ashdown, Des Browne, William Hague, Richard Littlejohn, Polly Toynbee.

Filmed in Salisbury, this edition focussed on the MP Expenses Scandal. Also, this edition was broadcast at the earlier time of 9.00pm. Panellists: Yasmin Alibhai-Brown, Marta Andreasen, Martin Bell, Ben Bradshaw, Vince Cable, William Hague.

Panellists: Paddy Ashdown, Richard Dannatt, William Hague, Piers Morgan, Bill Rammell, Salma Yaqoob.

David Dimbleby chairs the topical debate from London so that the panellists and the audience can react to the prime ministerial debate.

The panel are the Work and Pensions Secretary Yvette Cooper, the shadow foreign secretary William Hague, the former Liberal Democrat leader Ming Campbell, Plaid Cymru's leader at Westminster Elfyn Llwyd and the journalist Ann Leslie.

David Dimbleby presents topical debate from West Bromwich. On the panel are former Conservative Party leader William Hague, Labour deputy leader Harriet Harman, Scotland's deputy first minister John Swinney of the SNP, UKIP deputy leader Paul Nuttall and Green Party leader Natalie Bennett.